What are the cheapest airlines to fly from St. Louis to Quebec one-way?

To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at C$ 269. American Airlines flights start at C$ 282 while deals on United Airlines start at C$ 292 one-way.

How far in advance should I book a flight from St. Louis to Quebec?

Travellers have found it’s best to book a flight 53 days in advance to save up to 257% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 53 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from St. Louis to Quebec 1-2 weeks in advance for as low as C$ 680, or C$ 1,145 for flights within the next 24 hours.

What is the cheapest month to fly from St. Louis to Quebec?

The best pricing can be found in the month of November. Prices to Quebec from St. Louis average C$ 905. You can even find prices in November for less than C$ 905, as users have found deals to Quebec from as low as C$ 664. The month of June appears to be one of the more expensive times to travel to Quebec from St. Louis. Flying in the targeted month can save you up to 26%.

What is the cheapest time of day to fly from STL to QC?

When flying from St. Louis to Quebec, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What airport do you fly from for flights from St. Louis to Quebec?

Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Quebec. It is only a 20.4 km journey to Lambert-St Louis (STL) from St. Louis’s city centre.

Can I find deals for flights from St. Louis to Quebec that include hotel bookings?

Yes. In addition to deals on St. Louis to Quebec flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from St. Louis to Quebec?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Quebec.

Can I find deals for business class flights from St. Louis to Quebec?

Yes. Cheapflights offers flight deals from St. Louis to Quebec by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 269+ Flights from St. Louis to Quebec

Cheap flight deals from St. Louis to Quebec

Round-trip from	C$ 512
One-way from	C$ 269
Popular in	June
Cheapest in	November
Average price	C$ 986

Air Canada
14/5-21/5
3 total stops
12h 52m total
St. Louis to Quebec

Search Deals

Air Canada
12/5
1 total stop
5h 06m total
St. Louis to Quebec

Search Deals

Highest demand for flights based on searches. 4% potential increase in price (C$ 53 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (C$ 32 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2025

Search Deals

Find flight deals from St. Louis to Quebec

Cheapest flights from St. Louis to Quebec
Explore the most affordable flight options available from St. Louis to Quebec. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 March 2025.

Wed 14/51:30 p.m.STL - YQB

1 stop5h 06mAir Canada

Wed 21/55:50 a.m.YQB - STL

2 stops7h 46mAir Canada

Deal found 30/3C$ 512

Wed 14/56:00 a.m.STL - YQB

1 stop6h 30mAmerican Airlines

Wed 21/52:15 p.m.YQB - STL

1 stop8h 37mAmerican Airlines

Deal found 30/3C$ 631

Wed 14/56:30 a.m.STL - YQB

2 stops11h 25mUnited Airlines

Wed 21/56:00 a.m.YQB - STL

2 stops10h 47mUnited Airlines

Deal found 30/3C$ 661

Sat 17/510:10 a.m.STL - YUL

2 stops37h 27mMultiple Airlines

Wed 21/56:45 a.m.YUL - STL

1 stop27h 30mMultiple Airlines

Deal found 30/3C$ 739

Sat 17/56:00 a.m.STL - YUL

1 stop6h 41mDelta

Wed 21/56:05 a.m.YUL - STL

1 stop10h 03mDelta

Deal found 30/3C$ 793

Sun 15/61:30 p.m.STL - YUL

Nonstop2h 30mAir Canada

Sat 21/66:10 p.m.YUL - STL

Nonstop2h 48mAir Canada

Deal found 31/3C$ 833

Sun 18/57:10 a.m.STL - YUL

1 stop5h 34mAmerican Airlines

Sun 25/52:35 p.m.YUL - STL

1 stop5h 48mAmerican Airlines

Deal found 30/3C$ 853

Wed 14/56:30 a.m.STL - YUL

2 stops10h 55mUnited Airlines

Wed 21/56:10 p.m.YUL - STL

Nonstop2h 48mUnited Airlines

Deal found 30/3C$ 860

Tue 14/106:45 a.m.STL - YUL

1 stop4h 30mWestJet

Sun 19/106:15 p.m.YUL - STL

1 stop6h 24mWestJet

Deal found 31/3C$ 1,019

Wed 2/75:00 a.m.STL - YQB

2 stops10h 00mMultiple Airlines

Wed 9/72:50 p.m.YQB - STL

1 stop6h 10mMultiple Airlines

Deal found 31/3C$ 1,102

Best flights from St. Louis to Quebec
Discover carefully curated flight deals from St. Louis to Quebec that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 31 March 2025.

Wed 14/51:30 p.m.STL - YQB

1 stop5h 06mAir Canada

Wed 21/55:50 a.m.YQB - STL

2 stops7h 46mAir Canada

Deal found 30/3C$ 512

Wed 14/56:00 a.m.STL - YQB

1 stop6h 30mAmerican Airlines

Wed 21/52:15 p.m.YQB - STL

1 stop8h 37mAmerican Airlines

Deal found 30/3C$ 631

Wed 14/56:30 a.m.STL - YQB

2 stops11h 25mUnited Airlines

Wed 21/56:00 a.m.YQB - STL

2 stops10h 47mUnited Airlines

Deal found 30/3C$ 661

Sat 17/510:10 a.m.STL - YUL

2 stops37h 27mMultiple Airlines

Wed 21/56:45 a.m.YUL - STL

1 stop27h 30mMultiple Airlines

Deal found 30/3C$ 739

Sat 17/56:00 a.m.STL - YUL

1 stop6h 41mDelta

Wed 21/56:05 a.m.YUL - STL

1 stop10h 03mDelta

Deal found 30/3C$ 793

Fri 4/73:13 p.m.STL - YUL

1 stop5h 07mWestJet

Mon 7/77:00 a.m.YUL - STL

1 stop6h 24mWestJet

Deal found 30/3C$ 1,019

Sun 15/61:30 p.m.STL - YUL

Nonstop2h 30mAir Canada

Sat 21/66:10 p.m.YUL - STL

Nonstop2h 48mAir Canada

Deal found 31/3C$ 833

Sun 18/57:10 a.m.STL - YUL

1 stop5h 34mAmerican Airlines

Sun 25/52:35 p.m.YUL - STL

1 stop5h 48mAmerican Airlines

Deal found 30/3C$ 853

Wed 14/56:30 a.m.STL - YUL

2 stops10h 55mUnited Airlines

Wed 21/56:10 p.m.YUL - STL

Nonstop2h 48mUnited Airlines

Deal found 30/3C$ 860

Wed 2/75:00 a.m.STL - YQB

2 stops10h 00mMultiple Airlines

Wed 9/72:50 p.m.YQB - STL

1 stop6h 10mMultiple Airlines

Deal found 31/3C$ 1,102

Direct flights from St. Louis to Quebec
Explore direct flight options from St. Louis to Quebec based on user searches, and compare prices and availability for your desired travel dates. Data last updated 31 March 2025.

Sun 15/61:30 p.m.STL - YUL

Nonstop2h 30mAir Canada

Sat 21/66:10 p.m.YUL - STL

Nonstop2h 48mAir Canada

Deal found 31/3C$ 833

Fri 4/71:30 p.m.STL - YUL

Nonstop2h 30mUnited Airlines

Mon 7/76:10 p.m.YUL - STL

Nonstop2h 50mUnited Airlines

Deal found 30/3C$ 1,032

Last-minute flights from St. Louis to Quebec
Discover last-minute flight deals from St. Louis to Quebec. Data last updated 31 March 2025 and is based on user searches.

Fri 4/46:10 a.m.STL - YUL

1 stop9h 20mDelta

Sun 6/46:00 a.m.YUL - STL

1 stop9h 46mDelta

Deal found 30/3C$ 1,106

Fri 25/410:40 a.m.STL - YUL

1 stop5h 46mAir Canada

Fri 2/56:10 p.m.YUL - STL

Nonstop2h 48mAir Canada

Deal found 29/3C$ 877

Fri 25/45:00 a.m.STL - YUL

1 stop7h 39mAmerican Airlines

Fri 2/510:39 a.m.YUL - STL

1 stop11h 08mAmerican Airlines

Deal found 29/3C$ 883

One-way flights from St. Louis to Quebec
Search for one-way flight options from St. Louis to Quebec. Find affordable one-way fares based on user searches. Data last updated 31 March 2025.

Mon 12/51:30 p.m.STL - YQB

1 stop5h 06mAir Canada

Deal found 30/3C$ 269

Mon 16/64:37 p.m.STL - YQB

2 stops18h 48mAmerican Airlines

Deal found 31/3C$ 282

Thu 5/68:10 a.m.STL - YQB

2 stops12h 55mUnited Airlines

Deal found 30/3C$ 292

Mon 26/51:30 p.m.STL - YUL

Nonstop2h 30mAir Canada

Deal found 29/3C$ 379

Mon 26/53:40 p.m.STL - YUL

1 stop7h 14mDelta

Deal found 29/3C$ 386

Thu 12/64:17 p.m.STL - YUL

2 stops21h 33mMultiple Airlines

Deal found 29/3C$ 399

Mon 26/56:00 a.m.STL - YUL

2 stops9h 55mAmerican Airlines

Deal found 29/3C$ 424

Fri 25/49:39 a.m.STL - YUL

2 stops9h 06mUnited Airlines

Deal found 30/3C$ 432

Thu 5/610:10 a.m.STL - YQB

3 stops20h 50mMultiple Airlines

Deal found 30/3C$ 507

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Quebec that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Wed 14/5

1:30 p.m.-7:36 p.m.

1 stop5h 06m

Québec City

Wed 21/5

5:50 a.m.-12:36 p.m.

2 stops7h 46m

C$ 512

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Wed 14/5

6:00 a.m.-1:30 p.m.

1 stop6h 30m

Québec City

Wed 21/5

2:15 p.m.-9:52 p.m.

1 stop8h 37m

C$ 631

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Wed 14/5

6:30 a.m.-6:55 p.m.

2 stops11h 25m

Québec City

Wed 21/5

6:00 a.m.-3:47 p.m.

2 stops10h 47m

C$ 661

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Sat 17/5

10:10 a.m.-12:37 a.m.

2 stops37h 27m

Montreal Pierre Elliott Trudeau Intl

Wed 21/5

6:45 a.m.-9:15 a.m.

1 stop27h 30m

C$ 739

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Sat 17/5

6:00 a.m.-1:41 p.m.

1 stop6h 41m

Montreal Pierre Elliott Trudeau Intl

Wed 21/5

6:05 a.m.-3:08 p.m.

1 stop10h 03m

C$ 793

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Sun 15/6

1:30 p.m.-5:00 p.m.

Nonstop2h 30m

Montreal Pierre Elliott Trudeau Intl

Sat 21/6

6:10 p.m.-7:58 p.m.

Nonstop2h 48m

C$ 833

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Sun 18/5

7:10 a.m.-1:44 p.m.

1 stop5h 34m

Montreal Pierre Elliott Trudeau Intl

Sun 25/5

2:35 p.m.-7:23 p.m.

1 stop5h 48m

C$ 853

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Wed 14/5

6:30 a.m.-6:25 p.m.

2 stops10h 55m

Montreal Pierre Elliott Trudeau Intl

Wed 21/5

6:10 p.m.-7:58 p.m.

Nonstop2h 48m

C$ 860

St. LouisMontreal

STL - YUL

STLYUL

Lambert-St Louis

Fri 4/7

3:13 p.m.-9:20 p.m.

1 stop5h 07m

Montreal Pierre Elliott Trudeau Intl

Mon 7/7

7:00 a.m.-12:24 p.m.

1 stop6h 24m

C$ 1,019

St. LouisQuébec City

STL - YQB

STLYQB

Lambert-St Louis

Wed 2/7

5:00 a.m.-4:00 p.m.

2 stops10h 00m

Québec City

Wed 9/7

2:50 p.m.-8:00 p.m.

1 stop6h 10m

C$ 1,102

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/3

Showing 1-10 of 19 results

Best time to book a flight from St. Louis to Quebec

Have a flexible travel schedule? Discover the best time to fly to Quebec from St. Louis with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Quebec

What is the cheapest month to book a flight from St. Louis to Quebec?

Currently, October is the cheapest month in which you can book a flight from St. Louis to Quebec (average of C$ 241). Flying from St. Louis to Quebec in April is currently the most expensive (average of C$ 312). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in Quebec by month

In terms of precipitation, rainfall in Quebec ranges from 64.0 - 111.0 mm per month. August is typically the wettest month, when rainfall can reach 111.0 mm. February is typically the driest time to visit Quebec when rainfall is around 64.0 mm.

Temperature in Quebec by month

If weather is an important factor for your trip to Quebec, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -9.0 C).

Reviews of airlines servicing Quebec

Get a feel of what it's like to fly with Delta, United Airlines and American Airlines from St. Louis to Quebec by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,899 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very good

7,899 reviews

Delta

8.0

Very good

7,899 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,614 reviews

Delta

8.0

Very good

7,899 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,899 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

WestJet

7.2

Good

2,789 reviews

Delta

8.0

Very good

7,899 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air Canada

7.0

Good

9,004 reviews

Delta

8.0

Very good

7,899 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What airport do you fly from for flights from St. Louis to Quebec?
Lambert-St Louis (STL) is the airport you will fly out of if you book a flight from St. Louis to Quebec. It is only a 20.4 km journey to Lambert-St Louis (STL) from St. Louis’s city centre.
What are the cheapest airlines to fly from St. Louis to Quebec one-way?
To fly one-way, consider booking your trip with Air Canada, which is currently one of the cheapest options available, starting at C$ 269. American Airlines flights start at C$ 282 while deals on United Airlines start at C$ 292 one-way.
Can I find deals for flights from St. Louis to Quebec that include hotel bookings?
Yes. In addition to deals on St. Louis to Quebec flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from St. Louis to Quebec?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from St. Louis to Quebec.
Can I find deals for business class flights from St. Louis to Quebec?
Yes. Cheapflights offers flight deals from St. Louis to Quebec by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from St. Louis to Quebec?
Currently, October is the cheapest month in which you can book a flight from St. Louis to Quebec (average of C$ 241). Flying from St. Louis to Quebec in April is currently the most expensive (average of C$ 312). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for St. Louis to Quebec

Complete your trip

Quebec car rentals

Montreal Pierre Elliott Trudeau Intl Airport car rentals

Québec City Airport car rentals

Montreal St Hubert Airport car rentals

Saguenay Bagotville Airport car rentals

La Vernière Iles De La Madeleine Airport car rentals

Sept-Iles Airport car rentals

Baie Comeau Airport car rentals

Rouyn-Noranda Airport car rentals

Gaspe Airport car rentals

Val D'Or Airport car rentals

Mont Joli Airport car rentals

Direct flights to Canada

Fly with Cheapflights

How does Cheapflights help users find flights from St. Louis to Quebec?

Cheapflights helps you search for flights from St. Louis to Quebec via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Quebec?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from St. Louis to Quebec.

Can Cheapflights find flights from St. Louis to Quebec with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from St. Louis to Quebec, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from St. Louis to Quebec become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Quebec from St. Louis today and book when prices fit your budget.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from St. Louis to Quebec from C$ 269

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/5. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from St. Louis to Quebec

Keep the following information in mind while searching for St. Louis to Quebec flight deals. Data was last updated 31 March 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from St. Louis to Quebec

Cheapest flights from St. Louis to QuebecExplore the most affordable flight options available from St. Louis to Quebec. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 March 2025.

Explore the most affordable flight options available from St. Louis to Quebec. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 March 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from St. Louis to Quebec that are best for you.

Best time to book a flight from St. Louis to Quebec

Have a flexible travel schedule? Discover the best time to fly to Quebec from St. Louis with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from St. Louis to Quebec

What is the cheapest month to book a flight from St. Louis to Quebec?

Rainfall in Quebec by month

Plan your trip to Quebec by taking into account the average rainfall totals by month.

Temperature in Quebec by month

Plan your trip to Quebec by taking into account the average temperature totals by month.

Reviews of airlines servicing Quebec

Get insights into the airlines that provide service to Quebec. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Quebec. Reviews last updated 31 March 2025.

Get a feel of what it's like to fly with Delta, United Airlines and American Airlines from St. Louis to Quebec by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from St. Louis to Quebec. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from St. Louis to Quebec?

What are the cheapest airlines to fly from St. Louis to Quebec one-way?

Can I find deals for flights from St. Louis to Quebec that include hotel bookings?

How can I find direct flights from St. Louis to Quebec?

Can I find deals for business class flights from St. Louis to Quebec?

What is the cheapest month to book a flight from St. Louis to Quebec?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for St. Louis to Quebec

See prices for flight routes from nearby airports that may be better suited for you.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St. Louis to Quebec?

Why should you use Cheapflights to find cheap flight tickets from St. Louis to Quebec?

Can Cheapflights find flights from St. Louis to Quebec with no change fees?

Can Cheapflights notify me if prices for flights from St. Louis to Quebec become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from St. Louis to Quebec
Explore the most affordable flight options available from St. Louis to Quebec. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 March 2025.